Agents can only charge 3% of rookie contracts, and many are going as low as 1% to attract clients, so it's not a huge financial loss. There are a few perks such as extending lines of credit to players until the season begins, and some offer assistance in finding housing so that players can concentrate 100% on football. Also, it's a great way to get a behind the scenes look at how the agency operates before the players ask them to do any real heavy lifting.